MrSeb writes: "Steven Sinofsky, president of Windows and Windows Live, has detailed how the tiled Metro interface and the standard Windows Desktop (with a capital D) will peacefully coincide. You will have complete control over which interface you use — and you can use both at once, if you like. Tablets (and devices missing a keyboard and mouse) will probably boot up in the Metro UI, but it isn’t clear what the default for desktop and laptop PCs will be. Implementation-wise, Sinofsky points out that the Windows Desktop will now be "just an app", in that you launch it by jabbing a tile in the tile-based Metro interface; in other words, it won't steal RAM or CPU cycles unless you actively want to use it."